Tool · calculator
Nautical miles – calculating distance, speed and time
Distance = speed × time. Enter two, get the third.
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Results
Distance in km
Travel times for common routes
| Distance | 5 knots | 10 knots | 20 knots | 30 knots |
|---|---|---|---|---|
| 5 nautical miles | 1 h 0 min | 0 h 30 min | 0 h 15 min | 0 h 10 min |
| 10 nautical miles | 2 h 0 min | 1 h 0 min | 0 h 30 min | 0 h 20 min |
| 20 nautical miles | 4 h 0 min | 2 h 0 min | 1 h 0 min | 0 h 40 min |
| 30 nautical miles | 6 h 0 min | 3 h 0 min | 1 h 30 min | 1 h 0 min |
| 50 nautical miles | 10 h 0 min | 5 h 0 min | 2 h 30 min | 1 h 40 min |
How we calculate
Time = distance ÷ speed, speed = distance ÷ time, distance = speed × time. 1 nautical mile = 1,852 metres. Allow for currents, wind and speed limits – actual passage time is often longer.